Thermaltake TR2 RX 550W, ATX 12V 2.2 Series. AC input voltage: 115 - 230 V, AC input frequency: 50/60 Hz, Input current: 10/5 A. Fan diameter: 140 mm. Noise level: 16 dB. Weight: 2.2 kg. Safety: UL, CUL, TUV, FCC, CE